#include <iostream>
using namespace std;

int main(int argc, const char *argv[]){
    int x = 10;
    char y = 'A';
    double z = 3.14;
    cout << "x = " << x << endl; // 10
    cout << "y = " << y << endl; // A
    cout << "z = " << z << endl; // 3.14
    return 0;
}